.zup{
    z-index: 500;
}
.circle01{
    width: 400px;
    height: 400px;
    background-color: #bbffde;
    border-radius: 7%;
    box-shadow: 10px 10px 10px #91af96;
    line-height: 400px;
    text-align : center;
}
.circle01:hover{
    background-color: #d9ffdb;
    box-shadow: 10px 10px 10px #cccccc;
}
.circle02{
    width: 400px;
    height: 400px;
    background-color: #dedede;
    border-radius: 7%;
    box-shadow: 10px 10px 10px #a0a0a0;
    line-height: 400px;
    text-align : center;
}
.circle02:hover{
    background-color: #f5f5f5;
    box-shadow: 10px 10px 10px #cccccc;
}


form {
    padding: 20px 0;
    position: relative;
    z-index: 2;
}
form input {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    outline: 0;
    border: 1px solid rgba(224, 224, 224, 0.4);
    background-color: rgba(139, 139, 139, 0.2);
    width: 250px;
    border-radius: 3px;
    padding: 10px 15px;
    margin: 0 auto 10px auto;
    display: block;
    text-align: center;
    font-size: 18px;
    color: #919191;
    -webkit-transition-duration: 0.25s;
    transition-duration: 0.25s;
    font-weight: 300;
}
form input:hover {
    background-color: rgba(255, 255, 255, 0.4);
}
form input:focus {
    background-color: white;
    width: 300px;
    color: #a5a5a5;
}
